A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg.  After purification its volume was found to be 25.0 L.  How many moles of gas were collected (R = 0.08206 L atm/ mol K, 1 atm = 760mmHg)?

Q: If a gaseous mixture is made by combining 2.15 g Ar and 3.13 g Kr in an evacuated 2.50 L container…

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Q: A mixture containing 0.765 mol He(g), 0.330 mol Ne(g), and 0.110 mol Ar(g) is confined in a 10.00-L…

A: Given  No. Of moles of He = 0.765 mol No. Of moles of Ne = 0.330 mol No. Of moles of Ar = 0.110 mol…

Q: An empty flask has a mass of 47.392 g and 47.816 g when filled with acetone vapor at 100.oC and 745…

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Q: What volume is occupied by 0.146 mol of CO2 at 272.3 K and 915 mmHg? V = L

A: We consider CO2 as an ideal gas. And then we apply the ideal gas equation for calculating the volume…

Q: General: 2.0 L of O2(g) and 8.0 L of N2(g) , each at STP, are mixed together. The non-reactive…

A: Given that : The volume of oxygen gas = 2.0 L The volume of nitrogen gas = 8.0 L At STP, the…

Q: If a gaseous mixture is made by combining 1.33 g Ar and 2.47 g Kr in an evacuated 2.50 L container…

A: When amount of Ar and Kr are added, volume remains same. So, sum of partial pressure of each gas is…

Q: If a gaseous mixture is made by combining 4.77 g Ar and 2.34 g Kr in an evacuated 2.50 L container…

A: Pi = Xi x P Where, Pi = partial pressure of gas i,             Xi = mole fraction of gas i…

Q: At 1°C a 1.0-L flask contains 5.0 x 10 ^-2 mole of N2, 4.0 x 10^2 mg O2 , and 3.1 x 20^21 molecules…

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Q: n an airplane flying from San Diego to Boston, the temperature and pressure inside the 5.544 m3…

A: Using ideal gas equation for gases we can find no. Of moles  of air molecules.

Q: A mixture containing 0.250 mol N2 (g), 0.150 mol CH4 (g), and 0.100 mol O2 (g) is confined in a 1.00…

A: Given: moles of N2 = 0.250 mol moles of CH4 = 0.150 mol moles of O2 = 0.100 mol Temperature = 35 oC…

Q: 4. A 34.0-L cylinder contains 305 g of oxygen gas at 22°C. How many grams of gas must be released to…

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Q: What volume of water vapor in liters could be generated at 0.986 atm and 435. K by the combustion of…

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Q: A sample of methane, CH4, occupies a volume of 318.0 mL at 25°C and exerts a pressure of 1010.0…

A: Answer: pressure of gas is 0.55 atm or 417.99 mmHg

Q: In the fermentation of glucose (wine making), 760 ml of CO2 gas was produced at 65O mmHg. What is…

A: At STP  Pressure= 760 mmHg and Expression used for calculation is P1V1= P2V2

Q: A 1.00 L sample of dry gas at 16 °C and 744 mmHg contains 0.520 g N₂. What is the partial pressure…

A: Given that, Volume of the dry gas is 1.00 L. Temperature = 160C Total pressure = 744 mm Hg Mass of…

Q: What volume is occupied by 0.803 mol of CO2 at 260.5 K and 861 mmHg? V = %3D

A: We know that, PV = nRT

Q: A mixture containing 0.765 mol He (g), 0.330 mol Ne (g), and 0.110 mol Ar (g) is confined in a…

A: (a)Add all the moles of gases present in 10.00 L vessel and find the total moles.

Q: A 33.0-L cylinder contains 324 g O2(g) at 20 ∘C. How many grams of O2(g) must be released to reduce…

A: According to ideal gas law, PV = nRT where P = pressure of gas V = volume n = moles R = gas constant…

Q: The following chemical reaction represents the combustion of sugar. C6H12O6(s) + 6 O2(g) → 6 CO2(g)…

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Q: If 15.0 g of CO2 gas has a volume of 0.30 L at 310 K, what is its pressure in mmHg? In Pa?

A: Given that Mass of CO2 = 15.0 gmVolume = 0.30 LTemperature = 310 K   To calculate the pressure in…

Q: A high altitude balloon is filled with 1.41 x 104 L of helium gas at temperature of 21 oC and 1.00…

A: For part a): According to Ideal gas equation: PV=nRT 1 x1.41 x 104 =n x 0.0820 x (273+21)…

Q: What volume is occupied by 0.756 mol of CO2 at 250.2 K and 769 mmHg? V =

A: The combined relation between gas laws is known as the ideal gas law or the gas equation. The…

Q: In the reaction   2HgO(s)⟶2Hg(s)+O2(g) how many liters of oxygen gas, O2, measured at STP are…

A: In the reaction   2HgO(s)⟶2Hg(s)+O2(g) how many liters of oxygen gas, O2, measured at STP are…

Q: In any of the equation forms of the Ideal Gas Law, IGL, pressure must always be in what unit?  a…

A: It totally depends on that the given gas constant is taken in which unit . We should take pressure…

Q: A gaseous mixture containing 7 moles of nitrogen, 2.5 moles of oxygen and 0.50 mole of helium exerts…

A: Concept: Partial Pressure: it can be define as if a container filled with more than one gas, each…

Q: A mixture containing 0.765 mol Ne, 0.330 mol He and 0.110 mol Ar is confined in a 10.00L nessel at…

A: The ideal gas equation is given by,                                            PV = nRT Where, P is…

Q: Which two variables in the ideal gas law are directly proportional with volume? PV = nRT O…

A: According to Charles law - For a definite mass of a ideal gas , Volume is directly proportional to…

Q: 2. A 0.500 g impure sample of LINO; is heated, causing it to decompose according to the following…

A: Given temperature = 300 K. 1 atm = 760 mm Hg. The pressure of the dry gas = 760 – 26.7 =733.3 mm Hg.

Q: If some neon gas at 121,000 Pa were allowed to expand from 37 mL to 60 mL without changing the…

A: From the Boyles gas law, we know,     (At constant temperature)

Q: The following reaction is used to generate hydrogen gas in the laboratory. If 243 mL of gas is…

A: First determine the moles of hydrogen produced from given reaction under given conditions.…

Q: 3) 1.11 x 103 moles of nitrogen gas are contained in a 400. mL container at 25.1 °C. If the…

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Q: If a gaseous mixture is made by combining 1.16 g Ar and 2.45 g Kr in an evacuated 2.50 L container…

A:

Q: Three 1.00 L flasks at 25.0 °C and 1013 kPa pressure contain: CH4 (flask A), CO2 (flask B) and NH3…

A: The volume, temperature and pressure of three flasks (flask A, flask B and flask C) is 1.00 L,…

Q: bacterial culture isolated from sewage produced 35.5 mL of methane gas, CH4, at 31.0 oC and 753…

A: Use ideal gas equation  PV=nRT Calculate mole of bas  Then  Mole= volume at stp÷22.4 Volume=31.1ml

Q: If a gaseous mixture is made by combining 1.29 g Ar and 2.46 g Kr in an evacuated 2.50 L container…

A: The total pressure of a mixture of two non reacting gases is given by  PtotalV = (n1+n2)RT  Ptotal =…

Q: A 4.17 g4.17 g sample of NH3NH3 gas and a 4.17 g4.17 g sample of HClHCl gas are mixed in a 2.00…

A: GIVEN: NH3 gas sample =  4.17 g HCl gas sample = 4.17g Volume of flask =2.00 L Temperature=25oC To…

Q: Consider the reaction:2 SO2( g) + O2( g)-------> 2 SO3( g)a. If 285.5 mL of SO2 reacts with 158.9…

A: Consider the given balanced reaction as follows: 2 SO2 g + O2 g → 2 SO3 g Given information is as…

Q: Three gases (CO2, 02, and N) are trapped in individual bulbs of difterent volumes below. When the…

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Q: What mass of helium gas is needed to pressurize a 82.0L tank to 249 atm at 23°C? What mass of oxygen…

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Q: Two separate flasks are each filled with a gas at 25.0°C; the valve between them is opened and the…

A:

Q: Assume that an exhaled breath of air consists of74.8% N2, 15.3% O2, 3.7% CO2, and 6.2% water…

A: The partial pressure of each component may be calculated as:

Q: At 618 mm Hg, a sample of nitrogen gas occupies 490 mL.  What volume does the gas occupy if the…

A: We know Boyle's Law states that, "The absolute pressure(P) exerted by a given mass of an ideal gas…

Q: 87.23 grams of a gas occupies 45 L at 600 mm Hg and 25 C. What is the molar mass of the gas ?

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Q: The air bags in automobiles were once inflated by nitrogen gas generated by the rapid decomposition…

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Q: What pressure permits 25.0 cm3 of neon at 735 mmHg to expand to a volume of 40.0 cm3?

A: The initial volume of neon, V1=25.0 cm3 The initial pressure of neon, P1=735 mmHg The final volume…

Q: When 0.1 mol of HCl gas is placed in a 10 liter box at 25 degree C, the pressure is about the same…

A: Explanation: when NH3 and HCl are mixed we get the product ammonium chloride (NH4Cl) NH3 + HCl…

Q: A mixture of He, Ne and Ar has a total pressure of 4.55atm and is found to contain 0.22mol He,…

A: Partial Pressure Total pressure of a system is the sum of pressure of all the individual gas.…

Q: A flask contains a mixture of oxygen, nitrogen, and hydrogen gases. If the partial pressure of…

A: "Dalton's Law of Partial Pressures" states that in a mixture of gases which are non-reacting and…

Q: A certain laser uses a gas mixture consisting of 8.00 g HCl, 3.00 g H2, and 163 g of Ne. 1) What…

A: Given:-gas mixture  consisting of 8.00 g HCl, 3.00 g H2, and 163 g of Ne. find:-pressure is exerted…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.